MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The file's structure and numerous links are consistent with a spearphishing attachment used to lure victims to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://chcial.ru/uplcv?utm_term=sexy+words+that+start+with+f PDF link annotation
- https://floresdeserrezuela.com/aym_image/files/93245901726.pdfIn PDF document text
- http://jiendurancecoaching.com/ckfinder/userfiles/files/13378930198.pdfIn PDF document text
- https://tvmreza.tv/ckfinder/userfiles/files/zufamupolomuvodig.pdfIn PDF document text
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132683228d8f---20342142960.pdfIn PDF document text
- https://www.gurkhasfinance.com.np/ckfinder/userfiles/files/wejuwukirapixuduxedi.pdfIn PDF document text
- https://jeevandeepspecialcare.com/ckeditor/ckfinder/userfiles/files/soranurilexezesuk.pdfIn PDF document text
- http://irvinenott.co.uk/ckfinder/userfiles/files/wasaruvasukugagovufipedo.pdfIn PDF document text
- http://abwlondonblvd.com/uploads/files/49861124256.pdfIn PDF document text
- https://rallstarawards.us/nbloom/fckuploads/file/roxoresifogupaw.pdfIn PDF document text
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b853353f40---60558586729.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/jeselawirigozuxuro.pdfIn PDF document text
- https://silverstonedevelopments.com/ckfinder/userfiles/files/xowitenejigo.pdfIn PDF document text
- http://honderhotel.com/UploadFiles/FCKeditor/20210901110429.pdfIn PDF document text
- http://microsolder.hu/userfiles/files/34949721364.pdfIn PDF document text
- http://thelonerangerfanclub.com/ckfinder/userfiles/files/71523172777.pdfIn PDF document text
- https://allcreaturesinc.com/files/files/todevipu.pdfIn PDF document text
- http://portalcom-b2b.es/img/user//file/_0857936001630513757.pdfIn PDF document text
- http://jwconsult2005.com/file_media/file_image/file/40974071085.pdfIn PDF document text
- https://nabil-doukali.com/userfiles/file/mizowatawivegug.pdfIn PDF document text
- http://ibb-online.ru/f/file/81690595835.pdfIn PDF document text
- http://mabo-meccanica.eu/userfiles/files/basusivalevewotafebewizen.pdfIn PDF document text
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/161389ce4b1705---tatozosome.pdfIn PDF document text
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/q7prki11jj90vv8c1nfdj1vr1e/24019306841.pdfIn PDF document text
- https://hankilfood.com/upfile/files/15574339414.pdfIn PDF document text
- http://baheth24cars.com/ckfinder/userfiles/files/43780224648.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e038.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE038 | 10680 bytes |
SHA-256: a616c90acc5c5a9b26fd4e3f648896aa2501787ba027f40d4a78f36bc7df6829 |
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font_01_sfnt_off0000f8ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8EE | 19644 bytes |
SHA-256: 00a6beae4c992c86a10adee99e8817597c9b9d2aec0abe385d2739e8a5ee46da |
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font_02_sfnt_off00012bff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BFF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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